Command line switches

Supreme Commander will accept many command line switches. You can set them up in your windows shortcut, or in your GPGnet settings under Tools -> Options -> Supreme Commander -> Command Line Arguments.
This is a partial list, with some explanations.

The game engine will monitor all files on the disk, and if it detects a change, it will attempt to re-load that file immediately, if possible. This allows instant in-game updates of things like unit blueprints.

Save the replay to the given file. Does not work for skirmishes started with /map map_folder - you have to hook lua/SinglePlayerLaunch.lua and edit sessionInfo.createReplay = true (in function SetupCommandLineSkirmish) for this to work.